Quiz

2948 questions of the kind that actually get asked — in interviews, in architecture review boards, and by the person who has to run the thing at 3 AM. Every answer states the trade-off rather than the slogan, and says when the obvious choice is the wrong one.

All areas2948 Architecture Fundamentals91 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking96 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture105 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization102 AI-Era Architecture106 Software Architecture & Engineering93 Architecture Patterns94 Architecture Decision-Making101 The Architect's Meta-Skills102 Delivery & Release Engineering103 Platform Engineering & Developer Experience102 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data103 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98

Difficulty Any beginner intermediate advanced

5 questions in RTO & RPO.

Quiz

A collaborative workspace product must define RTO and RPO. The product team says "we can never lose a user's work". What does that requirement actually mean, and what does it cost?

A financial-operations platform sets one RTO and RPO for the entire business. What goes wrong, and how should they be derived instead?

A stakeholder asks for zero RPO across the estate. What does that cost and what would you propose instead?

A team documents an RPO of 24 hours because backups run nightly at 02:00 and take about 40 minutes. The last restore was attempted at the time the system was built. What is the honest recovery point objective?

In April 2022 a maintenance script at Atlassian used the wrong identifiers and deleted sites belonging to about 775 customers. Restoration took up to about two weeks for some of them, even though backups existed and were working. What property of the recovery design accounts for that gap?